EP1079248A3 - Adjustable add-drop-continue module - Google Patents

Adjustable add-drop-continue module Download PDF

Info

Publication number
EP1079248A3
EP1079248A3 EP00117734A EP00117734A EP1079248A3 EP 1079248 A3 EP1079248 A3 EP 1079248A3 EP 00117734 A EP00117734 A EP 00117734A EP 00117734 A EP00117734 A EP 00117734A EP 1079248 A3 EP1079248 A3 EP 1079248A3
Authority
EP
European Patent Office
Prior art keywords
drop
bsf
continue
module
tunable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP00117734A
Other languages
German (de)
French (fr)
Other versions
EP1079248B1 (en
EP1079248A2 (en
Inventor
Detlef Dr. Stoll
Alexander Dr. Richter
Harald Dr. Bock
Patrick Dr. Leisching
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Publication of EP1079248A2 publication Critical patent/EP1079248A2/en
Publication of EP1079248A3 publication Critical patent/EP1079248A3/en
Application granted granted Critical
Publication of EP1079248B1 publication Critical patent/EP1079248B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29304—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means operating by diffraction, e.g. grating
    • G02B6/29316—Light guides comprising a diffractive element, e.g. grating in or on the light guide such that diffracted light is confined in the light guide
    • G02B6/29317—Light guides of the optical fibre type
    • G02B6/29319—With a cascade of diffractive elements or of diffraction operations
    • G02B6/2932—With a cascade of diffractive elements or of diffraction operations comprising a directional router, e.g. directional coupler, circulator
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
    • G02B6/29382—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM including at least adding or dropping a signal, i.e. passing the majority of signals
    • G02B6/29383—Adding and dropping
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/26—Optical coupling means
    • G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
    • G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
    • G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
    • G02B6/29395—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device configurable, e.g. tunable or reconfigurable
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0205—Select and combine arrangements, e.g. with an optical combiner at the output after adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0206—Express channels arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0209—Multi-stage arrangements, e.g. by cascading multiplexers or demultiplexers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0213—Groups of channels or wave bands arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/0204—Broadcast and select arrangements, e.g. with an optical splitter at the input before adding or dropping
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0202—Arrangements therefor
    • H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
    • H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J14/00—Optical multiplex systems
    • H04J14/02—Wavelength-division multiplex systems
    • H04J14/0201—Add-and-drop multiplexing
    • H04J14/0215—Architecture aspects
    • H04J14/0219—Modular or upgradable architectures
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0022—Construction using fibre gratings
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q11/00—Selecting arrangements for multiplex systems
    • H04Q11/0001—Selecting arrangements for multiplex systems using optical switching
    • H04Q11/0005—Switch and router aspects
    • H04Q2011/0007—Construction
    • H04Q2011/0035—Construction using miscellaneous components, e.g. circulator, polarisation, acousto/thermo optical

Abstract

Das abstimmbare Add/Drop-Drop&Continue- bzw. Drop&Continue-Modul weist zwei optische Filter (BSF1,BSF2) auf, von denen zumindest eines abstimmbar ist und die zwischen einer Abzweigeeinrichtung (Zl1) für optische Signale (OS) und einer Einfügeeinrichtung (Zl2,OK) hintereinander angeordnet bzw. einer Abzweigeeinrichtung (Zl1) für optische Signale (OS) nachgeschaltet sind. Die Reflexionsdämpfung des einen abstimmbaren optischen Filters (BSF1) ist kleiner und die Transmissionsdämpfung größer als die des anderen optischen Filters (BSF2), wodurch die Drop&Continue-Funktion des Moduls ohne hohen schaltungstechnischen Aufwand realisierbar ist.

Figure 00000001
The tunable add / drop drop & continue or drop & continue module has two optical filters (BSF 1 , BSF 2 ), at least one of which is tunable and that between an optical signal (OS) branching device (Z1) and an insertion device (Z1). Zl2, OK) arranged one behind the other or downstream of a branch device (Zl1) for optical signals (OS). The reflection attenuation of one tunable optical filter (BSF 1 ) is smaller and the transmission attenuation greater than that of the other optical filter (BSF 2 ), whereby the drop & continue function of the module can be realized without high circuit complexity.
Figure 00000001
EP00117734A 1999-08-23 2000-08-17 Adjustable add-drop-continue module Expired - Lifetime EP1079248B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19939853 1999-08-23
DE19939853A DE19939853C2 (en) 1999-08-23 1999-08-23 Add / Drop-Drop & Continue module and Drop & Continue module

Publications (3)

Publication Number Publication Date
EP1079248A2 EP1079248A2 (en) 2001-02-28
EP1079248A3 true EP1079248A3 (en) 2005-03-30
EP1079248B1 EP1079248B1 (en) 2006-10-04

Family

ID=7919273

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00117734A Expired - Lifetime EP1079248B1 (en) 1999-08-23 2000-08-17 Adjustable add-drop-continue module

Country Status (3)

Country Link
US (1) US7266299B1 (en)
EP (1) EP1079248B1 (en)
DE (2) DE19939853C2 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1453234A3 (en) * 2003-02-27 2006-05-17 ECI Telecom Ltd. An optical communication system and method
US20050196169A1 (en) * 2004-03-03 2005-09-08 Fujitsu Limited System and method for communicating traffic between optical rings
GB0407386D0 (en) 2004-03-31 2004-05-05 British Telecomm Monitoring a communications link
GB0421747D0 (en) 2004-09-30 2004-11-03 British Telecomm Distributed backscattering
JP4587792B2 (en) * 2004-11-30 2010-11-24 富士通株式会社 Ring-shaped optical transmission system and optical device connected thereto
JP4782798B2 (en) * 2004-12-17 2011-09-28 ブリティッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー Network evaluation
EP1708388A1 (en) * 2005-03-31 2006-10-04 British Telecommunications Public Limited Company Communicating information
EP1713301A1 (en) 2005-04-14 2006-10-18 BRITISH TELECOMMUNICATIONS public limited company Method and apparatus for communicating sound over an optical link
EP1989797B1 (en) * 2006-02-24 2011-04-13 BRITISH TELECOMMUNICATIONS public limited company Sensing a disturbance
CA2647173A1 (en) 2006-04-03 2007-10-11 British Telecommunications Public Company Limited Evaluating the position of a disturbance
ES2530888B2 (en) 2013-09-06 2015-10-08 Universidad Politécnica de Madrid PASSIVE OPTICAL MULTIPLEXOR
GB2549500A (en) 2016-04-19 2017-10-25 Airbus Operations Ltd Node for an optical network

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5748349A (en) * 1996-03-27 1998-05-05 Ciena Corp. Gratings-based optical add-drop multiplexers for WDM optical communication system
WO1998049795A1 (en) * 1997-04-25 1998-11-05 Ciena Corporation Optical add-drop multiplexers compatible with very dense wdm optical communication systems

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2731280B1 (en) * 1995-03-03 1997-04-04 Hamel Andre HIGH INSULATION INSERTION-EXTRACTION OPTICAL MULTIPLEXER
US5712932A (en) * 1995-08-08 1998-01-27 Ciena Corporation Dynamically reconfigurable WDM optical communication systems with optical routing systems
NL1001441C2 (en) * 1995-10-18 1997-04-22 Nederland Ptt Coupling device for coupling optical connections.
US5706375A (en) * 1996-09-10 1998-01-06 Jds Fitel Inc. Variable-attenuation tunable optical router
DE19847410A1 (en) * 1998-10-14 2000-04-20 Siemens Ag Optical unidirectional ring network
US6602000B1 (en) * 1999-02-19 2003-08-05 Lucent Technologies Inc. Reconfigurable add/drop for optical fiber communication systems

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5748349A (en) * 1996-03-27 1998-05-05 Ciena Corp. Gratings-based optical add-drop multiplexers for WDM optical communication system
WO1998049795A1 (en) * 1997-04-25 1998-11-05 Ciena Corporation Optical add-drop multiplexers compatible with very dense wdm optical communication systems

Also Published As

Publication number Publication date
DE19939853A1 (en) 2001-03-22
US7266299B1 (en) 2007-09-04
DE50013542D1 (en) 2006-11-16
EP1079248B1 (en) 2006-10-04
EP1079248A2 (en) 2001-02-28
DE19939853C2 (en) 2003-03-13

Similar Documents

Publication Publication Date Title
EP1079248A3 (en) Adjustable add-drop-continue module
EP1705953B1 (en) Hearing-aid device with optical microphone
EP0794629A3 (en) Optical add-drop multiplexer
EP1039667A3 (en) Variable transmission rate digital modem with multi-rate filter bank
EP1014125A3 (en) Dielectric optical filter network
EP1868013A3 (en) Improvements in variable focus optical devices
EP0622649A1 (en) Optical coupler with tap
ATE251313T1 (en) OPTICAL NETWORK ARRANGEMENT
EP1978385A3 (en) Optical device with slab waveguide and channel waveguides on substrate
EP1229365A3 (en) Passive alignment connection for fiber optics
DE69827231T2 (en) Optical excitation and signal acquisition of resonant microstructures at different wavelengths
EP1235370A3 (en) Bi-directional optical-amplifier module
EP1643670A3 (en) Optical network and optical add/drop apparatus
EP1225641A3 (en) Photo-semiconductor module and method for manufacturing the same
CA2287326A1 (en) Message transmission system with frequency dividing optical components for parallel processing of optical pulses
EP0826988A3 (en) Optical planar waveguide notch filters
EP1926342A3 (en) Optical switching system
ATE189157T1 (en) SCREEN CHANGE DEVICE FOR PLASTIC PROCESSING PLANT
ES2081067T3 (en) TELEPHONE TELEREUNION SYSTEM.
DE3220675A1 (en) TYMPANOMETRIC DEVICE
DE10039950C2 (en) Bi-directional optical amplifier
EP1408713A3 (en) Optical cross-connect system
DE60100957T2 (en) Device with single-stage optical all-pass filter
EP0827297A3 (en) Method of asymmetric attenuation of upstream and downstream signals
DE4408977C2 (en) Optical pulse reflectometer for displaying Raman scattered light

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Free format text: AL;LT;LV;MK;RO;SI

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20050929

AKX Designation fees paid

Designated state(s): DE GB

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE GB

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REF Corresponds to:

Ref document number: 50013542

Country of ref document: DE

Date of ref document: 20061116

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20061108

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20070831

Year of fee payment: 8

26N No opposition filed

Effective date: 20070705

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20070823

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: 732E

Free format text: REGISTERED BETWEEN 20090205 AND 20090211

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20080817

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20090303

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20080817